Harmonic filter

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As harmonic filters are predominantly in the Telecommunications electrical circuits referred to, the unwanted harmonics from the 2nd harmonic of an electrical signal to filter out .

Unwanted harmonics arise from non-linearities in electronic circuits, for example in electronic mixers and in signal processing and signal transmission .

Harmonic filters are implemented as low-pass filters . Harmonic filters can reduce the harmonic distortion of a signal.


In power engineering , the term harmonic is used almost exclusively for the higher harmonics, and accordingly the term harmonic filter . Some authors and translators also use the term harmonic in the field of communications engineering, but not the term harmonic filter .


  • Walter Fischer: Digital television and radio technology in theory and practice. MPEG baseband coding, DVB, DAB, ATSC, ISDB-T transmission technology, measurement technology . 2nd edition, Springer Verlag, Berlin / Heidelberg 2009, ISBN 978-3-540-88187-2 .
  • Ulrich Freyer: News transmission technology. Basics, components, processes and systems of telecommunications technology . 1st edition. Carl Hanser Verlag, Munich 2009, ISBN 978-3-446-41462-4 .

Individual evidence

  1. Technical Chair for Telecommunications, University of Munich, (PDF; 162 kB). (No longer available online.) Archived from the original on October 14, 2013 ; Retrieved June 15, 2012 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.lntwww.de

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